Above management: Scale development and empirical testing for public opinion monitoring of marine pollution

The marine eco-environment is receiving increasing attention globally, and the rapid development of network technology has enabled individuals to express their dissatisfaction and appeals for marine pollution through public engagement measures, particularly on network platforms. As a result, chaotic public opinions and information dissemination on marine pollution are becoming more prevalent. Previous studies have mainly focused on practical measures of marine pollution management, with limited exploration of how to prioritize the monitoring of public opinions on marine pollution. This study aims to develop a comprehensive and scientific measurement scale for public opinion monitoring on marine pollution by defining its implications and dimensions, verifying its reliability, validity, and predictive validity. The research defines the implications of public opinion monitoring regarding marine pollution based on previous literature and experience, using empathy theory as an entry point. The study uses text analysis to explore the internal laws of topic data on social media sites (n = 12,653), forming a theoretical conception of public opinion monitoring composed of three Level 1 dimensions (empathy arousal, empathy experience, and empathy memory). Based on research conclusions and related measurement scales, the study compiles the measurement items to develop the initial scale. Finally, the study verifies the scale reliability and validity (n1 = 435, n2 = 465) and predictive validity (n = 257). Results show that the public opinion monitoring scale has good reliability and validity, and the three Level 1 dimensions have a high level of interpretation for public opinion monitoring and good predictive validity. This research expands the application scope of public opinion monitoring theory and emphasizes the significance of public opinion management on the basis of traditional management research, increasing marine pollution managers' attention to the public domain of the network. Furthermore, it provides public opinion monitoring instruments for marine pollution through scale development and empirical research, reducing the occurrence of public trust crises and creating a stable and harmonious network environment.